Slip-ring.



Patented Dec. 11, 1917..

A TTRNEYS I I. TEPFER.

SLIP RING.

APPLICATION 'FILED FEB. I5, I9I?.

JACOB TEPFER, OF BROOKLYN, NEW YORK.

SLIP-RING.

Specification of Letters Patent.

Patented Dee. 11, 1917.

Application filed. February 15, 1917. Serial No. 148,922.

To all whom t may concern:

Be it known that I, JACOB TEPFER, a citizen of the United States, and aresident of the city of New York, borough of Brooklyn, in the county ofKings and State of New York, have invented a new and Improved Slip-Ring,of'which the following is a full, clear, and eXact description.

My invention relates to a slip ring, and an object is to provide asimple and inexpensive ring formed of a single blank. K

Another Objectis to provide a slip ring of comparatively little weightand great strength.

Reference is to be had to the accompanying drawings, forming part ofthis specification, inv which like characters indicate correspondingparts in both views.

Figure l is a section throughy a light flX- ture provided with a slipring embodying my invention; and

Fig. 2 is a perspective View of my ring lpartly in section to showtheconstruction.

Referring to the drawings, the ring 3 consists of an inner tubular part4 and an outer collar 5 semicircular 1n cross section and pre- Copies ofthis patent may be obtained for sentingan outer convex surface, one edgeof which collar is integral with an edge of the tubular member 4. Theportion 5 is punched inwardly toward'v the tubularportion 4to form asocket 6 with which an aperture 7 in the'tubular portion is in register,both being threaded to receive a'set screw 8 by means of which the ringcan be locked.

The ring is formed from a blank the central part of whichV isy punchedto form the tubular portion 4, the margin of the blank being used toform the collar 5. To form the ring, two operations only of the punchare required. The resulting ring is very light and rigid and it is aunit in itself.

I claim: p

As an article of manufacture, a `slip ring shaped from a blank topresent a tubular portion terminating at one end with an outer collar ofsemicircular cross section, the end of the collar resting against thetubular portion, said collar presenting an inwardly-directed socket forwhich the tubular member presents an alining aperture, both beingadapted to receive a set screw.

JACOB TEPFER.

ve cents each, by addressing the Commissioner of Patents.

Washington, D. U.

